Ashir,
The message on return to the same proxy point that it has passed through already will have the opportunity to check if the message is a loop or a spiral. I would expect that because it is a forwarding loop the message will seen to be a spiral and will then rely on the process of the proxy decrementing the Max-Forwards field. When the Max-Forwards reaches 0 the proxy will return a '483 Too Many Hops' final response to the UAC.
Have a read of the fields in question in 3261, check that the UAC or proxy is using the Max-Forwards field.
Regards,
Wayne Davies
email: [EMAIL PROTECTED]
| "Ashir Ahmed" <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED] 22/04/2004 10:35 PM
|
To: "Sip Implemators" <[EMAIL PROTECTED]> cc: "Siddiqui, Anwar A \(Anwar\)" <[EMAIL PROTECTED]> Subject: [Sip-implementors] Redirect question |
Hi,
Would be glad if someone can help me understand how to get rid of the
following loop.
A Redirect server at example1.com domain has Bob's redirection information
as follows:
sip:[EMAIL PROTECTED]>sip:[EMAIL PROTECTED]
Redirect server at example2.com domain is configured as:
sip:[EMAIL PROTECTED]>sip:[EMAIL PROTECTED]
In this scenario, an INVITE to sip:[EMAIL PROTECTED] will be redirected to
example2.com domain. The redirect server at example2.com domain will
transfer the call to example1.com. I see an endless loop will occur.
If the redirect servers are somehow misconfigured as above, how the loop can
be detected or ended?
Thanks.
Ashir
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